Jobsite before riser extensions install. The access ports over the trash and aeration/clarification chambers were about 18 inches below the surface. This Aquaklear system was past due for a pumping with a a severe backup in the clarification chamber causing slow toilet flushes, etc. Without surface access, there was no way to tell what the problem was, without digging them up.
After riser installation. With the risers installed over all the 4 chambers, the system can now be properly monitored and no more torn up yard for the homeowner or additional digging charges.